Bret Devereaux

Hey twitter, word-choice help. What's a good way to clearly express 'A thing someone does - like a job - because it is foundationally core to their identity' in contrast to a job someone does to, you know, eat. The word is, I guess 'vocation' but that feels like it has drifted?

And by 'foundational' I mean in the sense of like, "I am a farmer because my father was a farmer and my father's father was a farmer and my family are all farmers and farmer is all I shall ever be because me == farmer." That kind of born-into-it-this-is-what-I-am identity.